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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
74
ILLUMI DET
75
S SYS REQ
76
S SOC REQ
77
PWIC MUTE
78
PWIC STBY
79
LINE MUTE
80
PWIC DC DET
81
IC2 SDA
82
IC2 SCL
83
NC
84
MUTE AFS
85
MUTE 0
86
MUTE 1
87
MUTE 2
88
MUTE PRE FR
89
MUTE PRE SW
90,91
NC
92
RDS NOISE
93
TUN SMETER
94
AVSS
95
NC
96
VREF
97
AVCC
98
LX DATA S
99
LX DATA M
100
LX CLK
Truth value table
q CD motor control
CD MOTOR (Pin50)
Stop
L
Load
H
Eject
H
Brake
H
8
I/O
Application
I
Dimmer illumination detection
Communication request of system µ-com
O
→SOC
Communication request of SOC→system
I
µ-com
O
Power IC mute control
O
Power IC standby control
I
Line mute detection
I
DC offset detection
I/O
I2C data input/output
I/O
I2C clock input/output
-
Not used
I/O
AFS mute
O
E-VOL front mute
O
E-VOL rear mute
O
E-VOL SW mute
O
PRE-OUT mute for FR
O
PRE-OUT mute for SW
-
Not used
I
FM noise detection
I
S-meter input
-
-
Not used
-
-
I
Data from slave unit
O
Data to slave unit
I/O
LX-BUS clock
CD LOEJ (Pin49)
L
L
H
Hi-z
Truth
Processing / Operation / Description
Value Table
L: ON, H: OFF
TEL mute: Below 1V, NAVI mute: Over 2.5V
Output L fi xed
L: Mute ON, Hi-Z: Mute OFF
L: ON, H: OFF
L: ON, H: OFF
L: ON, H: OFF
Mute is L during CD play: L
Momentary power down: L
Only condition when DUAL ZONE or NAVI INT: H fi xed
L: Mute ON, H: Mute OFF
Output L fi xed
Output L fi xed
w Destination setting
TYPE 2 (Pin64)
TYPE 1 (Pin63)
0V
0V
0V
1.2V
0V
2.4V
1.2V
0V
2.4V
0V
2.4V
1.2V
2.4V
2.4V
3.6V
0V
3.6V
1.2V
3.6V
2.4V
5V
0V
MODEL
KDC-MP435U
KDC-X491
VISTEON
KDC-MP4036U
KDC-W4537UA
KDC-W4537UG
KDC-W4737U
KDC-W4537UAY
KDC-W4537UGY
KDC-W4737UY
U525
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